Dumping-wagon



(No Model.) 2 Sheets-Sheet 2.

W. 0.'SHADBOLT.

DUMPING WAGON.

Patented Aug. 10, 1897.

INV-ENTOR:

WITNESSESZ W ./9%

I Attorny.

UNITED STATES PATENT ()EEIcE.

\VILLIAM OSCAR SHADBOLT, OF BROOKLYN, NEV YORK.

DUMPlNG-WAGON.

SPECIFIGATION forming part of Letters Patent No. 587,866, dated August 10, 1897. Application filed September24, 1896. set-mint. 606,810. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM OSCAR SHAD- BOLT, a citizen of the United States, residing at Brooklyn, Kings county, New York, have invented certain new and useful Improvements in Dumping-Wagons, of which the following is a specification.

My invention relates to wagons adapted for rear dumping on a rolling fulcrum; and the object of the invention is to improve the dumping facilities, all as will be fully described.

In the accompanying drawings my improvements are illustrated as embodied in a wagon having a body adapted for garbage and mounted on springs, but this is not essential to the invention. 7

In the drawings, Figure 1 is a side elevation of the Wagon, showing the body down on the frame in its normal position; and Fig. 2 is a similar view showing the body tilted for dumping. In each of these general views the near hind wheel has been broken away the better to illustrate the rolling fulcrum and other dumping devices. Fig. 2 illustrates a modified arrangementof the slotted guide for steadying the body in dumping. Fig. 3 is a plan View of the wagon, and Fig. at is also a plan of the same as it appears when the body is omitted. This View shows the main supporting-frame in plan. Fig. 5 is a transverse vertical section on the line m in Fig. 1. Fig. 6 is a fragmentary View of the rolling fulcrum, illustrating a modified form thereof.

A represents as a whole the wagon-body, and B represents as a whole the stout frame on which the body is supported. This frame is, as here shown, supported on springs C and D, which-are mounted, respectively, on the front axle E and bind axle F.

G are the front wheels, and H the hind wheels.

The specific construction of the dumping devices and facilities containing my improvements will now be described.

The rear portion of the side-bars of the frame 13 are curved downward and provided each with a curved rack 1, and on the body at each side is a corresponding straight rack 2, the racks on the body being at all times in gear at some one point with the respective racks on the frame. It will be noted that when the for the body, the elevation of the front end of the body causing the respective racks on the body to roll over and keep in gear with those on the frame. When the body is fully dumped, as in Fig. 2, the respective racks on the body and frame will be in gear only at their rear ends.

The intergearing teeth of the straight and curved racks serve to prevent the heavy body A from slipping down the inclined surfaces of the side-bars of the frame, and in order to steady the body on its supporting-frame from the beginning to the end of the dumping operation and to guard against accident from the teeth of the racks on the body slipping out of those of the racks on the frame a slotted guide 3 is fixed on the frame B, one at each side, the slots in which are engaged by stout studs 4 on the body. The slot in the guide 3 is curved so as to. coincide with the path followed by the stud 4 when the body is tilted or rocked in dumping. 3 are represented in Figs. 1 and 2 as stationary on the frame B and the studs at as on the body and therefore movable along the slots of the guides in dumping, and this is the preferred construction; but the guides may be on the body A and the studs on the frame. This reversal of the construction is illustrated in Fig. 2. The operation is the same in both cases. dispensed with, as shown in the modified construction, Fig. 6, where the rolling fulcrum is composed of a plain, curved, or. convex plate 1, on which rolls a plain plate 2' on the body. In this case the guide 3 and studs 4 are relied on alone to sustain the body against slipping in dumping. The plates 2 will have by preference each a pendent flange 2 to prevent the body from slipping laterallyin dumping, and they may each have a tooth or projection 2 to engage a correspondingrecess 1 in the plate 1 when the body is in its normal position and thus aid in preventing it from slipping longitudinally.

The center of gravity of the load is about the point 00 Fig. 1, so that the weight is fairly The guides The toothed racks 1 and 2 may be and properly distributed between the two axles.

The mechanism herein shown for tilting the body in dumping will now be described. On the frame B under the front end of the body are fixed tracks 5, which will be by preference inclined, their rear ends being elevated, and on these tracks are mounted flanged wheels 6, rotatively mounted on the lower end of a lifting-frame 7, the upper end the winch is rotated to wind up the chain on its barrel the wheels 6 are drawn along the tracks 5 toward the winch, thus causing the lifting-frame 7 to gradually assume an erect position under the body and elevate the front end of the latter to the position seen in Fig.

2. As here shown,the winch consists of a barrel 'rotatively mounted in the frame B and having a spur gear-wheel on its outer end. This wheel gears with a pinion on a drivingshaft adapted to receive a removable crank.

- To sustain the body A in its tilted position,

a hinged pawl or dog engages the teeth of the spur-wheel. There may also be a brake, to

be applied by hand to the crank-shaft, so as 'toease the body down to its normal position 1 As here shown, the chains 8 are fixed to the frame B at one end,,passed I after dumpin g.

around sheaves on the frame 7, and thence back to the barrel of the winch, but this is not essential to myinvention. This winch mechanism has not been more particularly described as it is not in itself new, and other 7 ;known devices for elevating the front end of the body may be employed in lieu of that herein shown.

The body of the wagon herein shown is, as stated, adapted for receiving garbage, but as it forms no essential part of the invention, except in so far that the wagon will have some form of body, it will only be necessary to briefly describe it. The bottom of the body has at its tail end 10 an upward slope to the lip 10, and the rear end 12 of the body is sloped rearwardly and has a hinged tailgate 11, provided with packing 11 The top 'or roof of the body is convex and has sliding cover-plates 14, mounted in keeper-grooves in the arch-frames 1'3. Tie-rods 15 form lateral braces at each frame 13.

To cushion the body, I prefer to employ springs 16, which may be of rubber, between the frame B and the body, and these will be of the more importance in wagons where no springs G and D are employed between the frame B and the axles. 7

Having thus described my invention I claim 1. A dumping-wagon comprisingtwo parts,

movement, said device comprising a guide with a curved slot situated at the rear end of the rolling fulcrum, and a stud engaging said curved slot, one of said parts being 86? cured rigidly to the body and the other to the frame, the curve of the guide-slot conforming to the path of the stud during the dumping movement, substantially as set forth.

2. A dumping-wagon comprising two parts, a tilting body and a supporting-frame, the latter being curved downward at its rear'end to form a rolling fulcrum for the body in dumping, and the former straight, internmsh 8 5 ing racks on the respective parts, a lifting device for elevating the front-end of the body and devices for steadying the body in dump ing, each of said devices comprising a guide with a curved slotsituated at the rear end of 90 it the rolling fulcrum, and a stud engaging said slot, one part of said device being fixed "to the body and the other to the supporting-frame, substantially as set forth. v

3. A dumping-wagon comprising two pa body and frame being provided with a rack at its hinder or rear end, the racks intermeshing and one of them being curved,a lifting mechanism for elevating the front end of the body in dumping, and steadying devices for the body in dumping, each of said devices consisting of a curved guide on one part the wagon at the rear end of said racks and V a stud on the other part of the wagon and gaging said guide, substantially as set forth.

4. A dumping-wagon, comprising a tilting body, a supporting-frame provided at its hinder end with downwardly-curved racks! form a rolling fulcrum for the body, said having racks which rest on and gear with the H respective racks on the supporting-frame,and. said body being so supported on said frail) during tilting, that its center of gravity shall always be forward of the fulcrum, wh reby A the inclination of the body may be limited-or adjusted as desired for varying conditions, I, lifting device engaging said body forward at its center of gravity for elevating the end of said body, and the upright, slotted guides 3, on the frame at the rear ends of a!! respective curved racks, and the studs 4 on the body, and engaging the curved slots in I the respective guides, substantially as. do scribed.

In witness whereof I have hereunto si had my name in the presence of two subscri ing witnesses. 7 V

WILLIAM OSCAR SHADBOLT. Witnesses:

PETER A. Ross, HENRY CONNETT.

, a tilting body and a supportingdframe, 'sai A 

